forum really wont do much. Level up and get your self in a expierence guild that can show you. Reading and doing something are two different things but, actually doing it will get you better.
A fighter requires a lot of dex because of the dp nerf a speed crit build
i am new to sk since i will have 1 soon
but ik anti crit, damage absorb, con, etc sk pvp by jocer
for fighter go speed crit (best combination)
idk about sk though :(
Before you choose your master class you really have nothing to worry about unless you wish to partake in the Jr. Budokai. All you need before that is decent gear and a strategy that will keep you alive.